作者: Dmitry V Lapaev , Victor G Nikiforov , Georgy M Safiullin , Vladimir S Lobkov , Andrey A Knyazev
DOI: 10.1016/J.JLUMIN.2016.02.006
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摘要: Abstract Structural modifications following long-term UV irradiation with a pulsed nitrogen laser led to decrease/increase in the luminescence intensities of vitrified films thickness 8/20 µm, respectively. The were prepared from terbium(III) β-diketonate complex. Optical spectroscopic studies revealed that these features are associated different structures films. 20 µm film includes aggregates hindering non-radiative relaxation T1 states ligands. Such phenomenon is not observed 8 µm film. A comparative analysis luminescent data indicates redistribution energies ligands under modification predominant reason for changes properties